Writings   Chalk, cheese, cabbages and kings...

Buckminster Fuller's   enigmatic towers

Horology - Tick Tock!

The Liquid Piston  -  A Minimalist Heat Pump  -  running hot & cold !

Lord Kelvin's "Warming Engine"   -  The very first Heat Pump. And more on the Liquid Piston...

Heat Pumps  -  the principles explained, the advantages outlined...

Tessellations  - paving the plane, and sometimes space itself... see above. 

Mechanical Modelling  - Virtual imagery of real and imagined objects. 

Projects   -  Things to do if you're half handy...

Tea with the Devil   - An afternoon surprise...

The Irish Rover   -  A musical dream - on pram-wheels.

Heliostats   - Follow that Sun.  

Paper Parabolae   -  Concentrate that Sun...